Maiden voyage Liverpool - Queenstown - Boston.
Used on the transatlantic service her entire career.
Her first voyage was from Liverpool - Queenstown - Boston after which she was
transferred to Liverpool - Queenstown - New York service during the summer and
Trieste - Fiume - New York in the winter months.

Apr. 15, 1912:

Rescued 705 survivors from the Titanic.
(Carpathia departed New York on Apr. 11 bound for Trieste when she received the signal
from the Titanic. Capt. Rostron raced Carpathia through ice fields at speeds of up to 17 knots to reach the scene of the disaster. They arrived at the Cunard Pier at New York on Apr. 18)

Notes:

The Carpathia School in Winnipeg, Manitoba, Canada is named after the RMS Carpathia.
The school opened in 1953.

In Sept. 1999 the wreck of the Carpathia was located by the National Underwater and Marine Agency (NUMA). (Story)